Chastity Dotson

The FBI is brought in to consult on a botched DEA raid, but when Abbott’s former boss tries to blackmail Abbott into keeping the agency’s missteps quiet, he is forced to choose between his career and his morals.

Derek faces a lawsuit on his first day as interim chief when a patient awakens from anesthesia during surgery; Mark refuses to speak to Lexie.

While Ezra, Richard and Jules find a crucial clue to Maddie’s whereabouts, Maddie's interest in Patrick rings alarm bells for Max, Sally, and their dangerous boss - The Doctor.

Patrick throws Maddie a birthday party with some surprising guests; Max comes to the rescue; Richard makes a shocking discovery.

A rogue black ops team led by Onyx (guest star CHASTITY DOTSON) breaks into Kord Industries and steals something lethal. Meanwhile, Oliver's still struggling to connect with William, so he reaches out to a surprising source for help.

As Patrick and Maddie exchange marriage vows, the long-awaited showdown between con artists and FBI agents plays out, though it is unclear whose side Maddie is really on, or who will be victorious.